From 16a645e69b3c4da3db4d581d2a619877bc8bc82b Mon Sep 17 00:00:00 2001
From: Chris Fallin <chris@cfallin.org>
Date: Sat, 13 Nov 2021 14:31:11 -0800
Subject: [PATCH] Add fuzz target to fuzz wasm-to-IR conversion.

---
 fuzz/.gitignore               |  4 ++++
 fuzz/Cargo.toml               | 27 +++++++++++++++++++++++++++
 fuzz/fuzz_targets/parse_ir.rs |  9 +++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 fuzz/.gitignore
 create mode 100644 fuzz/Cargo.toml
 create mode 100644 fuzz/fuzz_targets/parse_ir.rs

diff --git a/fuzz/.gitignore b/fuzz/.gitignore
new file mode 100644
index 0000000..572e03b
--- /dev/null
+++ b/fuzz/.gitignore
@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 0000000..55d8543
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,27 @@
+
+[package]
+name = "waffle-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.3"
+wasm-smith = "0.8"
+
+[dependencies.waffle]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "parse_ir"
+path = "fuzz_targets/parse_ir.rs"
+test = false
+doc = false
diff --git a/fuzz/fuzz_targets/parse_ir.rs b/fuzz/fuzz_targets/parse_ir.rs
new file mode 100644
index 0000000..d662856
--- /dev/null
+++ b/fuzz/fuzz_targets/parse_ir.rs
@@ -0,0 +1,9 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+use waffle::frontend::wasm_to_ir;
+use wasm_smith::Module;
+
+fuzz_target!(|module: Module| {
+    let _parsed_module = wasm_to_ir(module.to_bytes()).unwrap();
+});